vitamin A Flashcards
(27 cards)
What is vitamin A commonly known for?
Maintaining healthy vision.
True or False: Vitamin A is a water-soluble vitamin.
False.
Name two food sources rich in vitamin A.
Carrots and liver.
What are the two main forms of vitamin A?
Retinol and carotenoids.
Fill in the blank: Vitamin A is essential for _______ function.
immune.
Which vitamin A form is found in animal products?
Retinol.
True or False: Carotenoids are only found in animal sources.
False.
What is the recommended dietary allowance (RDA) for vitamin A for adults?
900 mcg for men and 700 mcg for women.
Multiple Choice: Which of the following is a symptom of vitamin A deficiency? A) Night blindness B) Hair loss C) Skin rash
A) Night blindness.
What is the role of carotenoids in the body?
They act as antioxidants and can be converted to vitamin A.
Fill in the blank: Vitamin A is important for the maintenance of _______ tissue.
epithelial.
True or False: Excessive intake of vitamin A can lead to toxicity.
True.
What is another name for vitamin A deficiency?
Hypovitaminosis A.
Name one effect of vitamin A toxicity.
Liver damage.
Multiple Choice: Which of the following is NOT a function of vitamin A? A) Vision B) Bone health C) Blood clotting
C) Blood clotting.
What is the primary function of vitamin A in vision?
It helps form rhodopsin, a pigment in the retina.
Fill in the blank: The best dietary source of retinol is _______.
animal liver.
True or False: Vitamin A can be synthesized by the body.
False; it must be obtained from the diet.
What is the function of vitamin A in skin health?
It helps maintain skin integrity and repair.
Multiple Choice: Which vitamin A form is a precursor found in plants? A) Retinol B) Beta-carotene C) Retinal
B) Beta-carotene.
What is the impact of vitamin A on reproductive health?
It is essential for the development of sperm and fetal development.
Fill in the blank: Vitamin A deficiency can lead to _______ in children.
growth retardation.
True or False: Vitamin A is stored in the kidneys.
False; it is stored in the liver.
What is the term for the process of converting carotenoids to retinol?
Bioactivation.
